Apparatus for the manufacture of turned footwear



J. ZELINKA Nov. 29, 1949 APPARATUS FOR THE'MANUFACTURE OF TURNED FOOTWEAR lFiled July e, 1948 2 Sheets-Sheet l wi l mmf WW w N mm A l ila: l l-) 9 m 9W i ILV..- -il l 1 IKN.. E M, hm/...TV i@ mm\\\ mm. .Hnll W Y m w n W N ATTORNEYS.

J. ZELINKA Nov. 29, 1949 APPARATUS FOR THE MANUFACTURE OF TURNED FOOTWEAR Filed July 6, 1948 2 Sheets-Sheet 2 :lll/lll/lllll/ INVEN TOR. JOSEF ZEL /NKA Jil.

ATTORNEYS.

Patented Nov. 29, 1949 -Ar-BARA'rUseFon-.THE Mame-scrum 0F TURNEDrFoorwnA-n .'Joserfzeiinra, ziirrgezechrisiavakia assignerto..

Bata, Narosln'lodniln Ziinyilzechoslovakia Application July; 6, 194s, Serial-ism` 37,157.- 1n;iCzechoslovakiarilllyvtfia 1%715 the toe vnartof turnedffootwear- The operation of turning thetoe part ofgfoot-fA vvtear of the, kind specicd is. normally `carried outon turning machines ,which usually comprise.

two.. forms, the. work receiving. form. and the counter-form, ,the toe portion ,.ofjthe shoe under,

treatment b eing. clamp ed betweenthe twoiorms;

in .this condition the.shoe.is.p11 l led iromthework receiving form in a, direction towards the coun# terrform, `this operation beine. eieetedby the.lv operatori@ the mostrarti manually,... In. order to, make the operation .less tiresome, it hasbeen' proposed to providethework receiving form` with a pair of Vdistendiiig lingers which bytheir distending motion assist the operator in hiswork during the turninefof thashoe- `However, .th'e distending ,ngers are arranged in such away' that they are of assistance t0 theoperatonin; the first stage onlyofhis work', the turnineoig the shank portion, of the shoe, when-due tothe relatively-- large distance of this portionjfrom the shoe party clamped'between the vforni s, n o partieular, effort is. required', .while the said iingers. are not'oiany use durina-,theturning ofthe part, although in this phaseof theturning a.gp e1;

.. =30. ..r0!1.- I 6 iS mountedin asleeve provided in the inachine frame 3.. The. bracket I5 is guided by ation their aid Wouldjbe the. mostdesirable. .The apparatus in accordance withthepresent invention' permitsto eliminate thedisadyantage,

0f; the prior arrangement referred to Vand .tev carry-out the turningv OLiQOtvvearalmOst Without.

manual work-Since thevvorktobe eff tedby Ahands censistsat most'inliold'ine ,th

-otwear injposition, butnot atalll in turningtheme.-

The. essence. 0i theinventicn enrisists man..

arrangement in which. the worlueeeiying .form

isg. associated 1 with a belt of flexible material.

i a rollersystem in such a waxyas to. Lbe. extenided and then bent over atitbe rear...;oij thef toe .part

which is adapted Lto be.v controlled by.

oa shoe clamped between theengwof the work receiving form and thatbfjthe count erffornl, whereby the footwear vis turned. and pulled, .over

fromv the work receiyingz form onto Ithe connt er form. The. belt controllin,g rol1er s. are capable of. performing translators', .motiomin the.. axial.. i direction of thevrorir rece' ing -for able. nature., o f; the., tensioning an.d entending citent en thebelt beines obtained.. by, providing t the yield:

for. a, resilient. mounting oLtheaidirallers Further advantages. and.:teaturesoitheipres: ent l.1'rwer1tir-m Will appear from tl 1efollowine..de.

twear, s11ch as., slippers. l(babouches), gymnasiumhoes or the like and more. particularly. to anapnaratus forI turning;

Siption -when read vin conjunction with the aceen- 1nanyine.drawingsY in which .,Fig. 1 .shows theigeneral lay-out of the machinefin` inoperative position; 5 Figsf..2 to, .4 Showv diagrammatically the Various i phases of the Working process; vand .Eig. shows adetail, ofthe arrangement of the counterfform.

VThe apparatus is provided with ya work receiv- 10 ing, .forin.l.whichismounted slidably in a sleeve 2. carried by.the machine frame 3. The form I may beSh-itedby ,means,ofa screw 4 and a nut 5,i The sleeve 2 hasgfastened thereon by means o slws,thetwo,ends of a belt 'Iwhich is lopisedthroughan opening. 8 provided in the YVforni Ihebelt 'I may be made of leather, ruhhr, cordor,asimilar flexible and strong matlal.. Bothendportions of the belt 1 pass betweentensioningrollers 9 and I0, of which the 2Q., r oll erse;are. mounted on pivots Il carried by a "'doilblewarmed fork I2 and the rollers. ID are mountedat .theends ,ofsmall arms Iawhich are rotatablehabout ,thefpivots II and are connected togetherby-mean$ o f aspring I4. The double- 25 arm 6d vf OilfLIZ is-monntedin a forked bracket means.of ,an.auxi.liary guidared I8 which is mmlnlieddli asleeye. also. provided in the machine framen- 32. ThQbItaQKet, I5 with the tensioningv 35,rollers9and lu is'driven in the direction of the "arrowhbyfmansbf a gear wheel i9 meshing with, the, rack teeth I1 onthe, rod I6. The bracketl, is caused to.moye in the opposite diigectionby-means .o f a counter-.weight (not Onthebrackct I5.

All .lQcatlQtl. Qpposte. to. thatof the work receiyingform, I .therfe is-provided aA counter-form y to,.;tOGlSa]91lt. the pillot 215 vin clockwise direction, thismgyementheing. llimited by a stop screw. 2 9, 12,15 carries also. a guideroller Se which e theycrtical ,movement or the link l'l .rolls I5.,. th e work receivingiorm I passing through.

bracket 26 to turn about the link 21. The roller is pressed against the runway 3I by means of a spring 32 shown in Fig. 5. The link 21 is guided in a sleeve 33 on the machine frame 3 and receives vertical motion from a cam 34 by means of a lever rotatable about a pivot 36. The cam is arranged on the same shaft 31 as the gear wheel I9. The lever 35 is urged constantly downwards by means of a spring 38. The shaft 31 receives one-revolution drive from a motor (not shown) clutch of any desired type, the said clutch interrupting at the same time the connection between the gear wheel I and the shaft 31. clutch itself is controlled by a foot lever through the intermediary of a connecting rod 39.

l(v by means of a one-revolution= position, shown in Fig. 1, by the effect of the link 21. Under the action of the lateral runway the counter-form 23 with the holder 24 will be deflected out of the direction of the axis of the work receiving form and the operator can remove without diiculty the turned shoe from the counter form, whereby the cycle of operations is terminated.

, The apparatus and method in accordance with the present invention are suitable for use more particularly in connection with the turning of footwear with stiff sole, such as slippers (babouches) which operation has been very tiresome The The apparatus as thus far described operates in the following manner:

The fundamental position of the apparatus is shown in Fig. 1. In this position the link 21 is in its lowest position and the counter-form 23 has been deflected out of parallelism with respect to the axis of the work receiving form I by the lateral runway 3| acting on the roller 30 of the bracket 23. The object of such a deflection is to facilitate the access to the work receiving form. In this position the operator introduces the work receiving form into a shoe until the point of the form abuts against the toe of the shoe. During this operation the belt 1 passes between the upper and the sole of the shoe. By depressing the foot lever (not shown) the connecting rod 39 will cause the one-revolution clutch to drive the shaft 31, the gear wheel I9 being connected at the same time with the shaft 31 by means of the said clutch. The cam 34 will cause the to rock in upward direction whereby the link 21 will bring the counter-form 23 to the lever with'- the devices as hitherto used.

What I claim is: 1. In an apparatus for the manufacture of turnedfootwear, a work receiving form, a belt of flexible material associated therewith, a counreceiving form I under the action of the spring gear wheel I9 will engage with the rack teeth ,l I1 on the rod I5 and will carry along the said rod with the forked bracket I5 in the direction of the arrow S1. This results in the belt 1 being tensioned by the rollers 8, I0, and the upper and sole of the footwear being distended. Concurrently the turning of the shoe takes place, more particularly at the stage when the bracket I5 has assumed such a position that the rollers 9 are located in advance of the point of the work receiving form, as shown in Fig. 3. At this stage also the spring I 4 of the arms I3 carrying the rollers is tensioned under the effect of the tension of the belt 'E'. so that finally the apparatus will assume the position shown in Fig. 4 in which the shoe is turned already and is carried by the counter-form .et this moment the clutch will interrupt the connection between the gear wheel I 3 and the shaft 31, so that the bracket I5 with the rod l5 will return to its original position under the ect-ion of the counter-weight connected to the chain The cam 34 ceases to act on the lever Iand the latter swings downwards under 1 the action of the spring 38. the bracket 26 with the counter-form 23 being returned to their lower ter-form co-operating with the work receiving form, and means for controlling the belt in such a way as to extend the same Iand then bend it over the toe portion of a shoe clamped between the end of the work receiving form and that of.

the counter-form, whereby the shoe is turned and pulled over from the work receiving form into the counter-form.

2. In an apparatus for turned footwear, a work receiving form, a. belt of fiexible material associated therewith, a counter-form co-operating with the work receiving form, and means movable in the direction of the axis of the work receiving form for controlling the belt in such a way as to extend the same and then bend it over the toe portion of a shoe #clamped between the end of the work receiving. form and that of the counter-form, whereby the... shoe is turned and pulled over from the work re- J ceiving form onto the counter-form.

y 3. In an apparatus for the manufacture of. *turned footwear, a work receiving form, a belt` of fiexible material associated therewith, a counter-form co-operating with the work receiving form, means for controlling the belt in such a way as to extend the same and then bend it over the toe portion of a shoe clamped between the end of the work receiving form and that of the counter form, and means controlled by the machine drive for imparting axial movement to the belt controlling means in the direction of the axis of the work receiving form.

4. In an apparatus for the manufacture of turned footwear, a work receiving form, a belt of flexible material associated therewith, a counter form co-operating with the work receiving form, means for controlling the belt in such a way as to extend the same and then bend it over the toe portion of a shoe clamped between the end of the work receiving form and that of the counter-form, means controlled by the machine drive for Aimparting axial movement to the belt. AI controlling means in the direction of the axis of the work receivingform, and means for impartf ing vertical movement to the counter-form.

5. In an apparatus for the manufacture of turned footwear, a work receiving form, a belt of flexible material associated therewith, a coundrive for imparting axial movement to the belt controlling means in the direction of the axis of the work receiving form, means for imparting the manufacture of vertical movement to the counter-form, and means for controlling the rocking movement of the counter-form.

6. In an apparatus for the manufacture of turned footwear, a Work receiving form, a belt of ilexible material associated therewith, a counter-form co-operating with the work receiving form, a roller system for controlling the belt in such a way as to extend the same and then bend it over the toe portion of a shoe clamped between the end of the Work receiving form and that of the counter-form, a bracket controlled by the machine drive for imparting axial movement to the belt controlling rollers in the direction of the axis of the work receiving form, a link operated by the machine drive for imparting vertical movement to the counter form and a lateral runway co-operating with a spring urged roller to control the rocking movement of the counter-form.

7. In an apparatus for the manufacture of turned footwear, a work receiving form, a roller system comprising two pairs of rollers for controlling the belt in such a Way as to extend the same and then bend it over the toe portion of a shoe clamped between the end of the work receiving form and that of the counter-form, a bracket controlled by the machine drive for imparting axial movement to the belt controlling rollers in direction of the axis of the work receiving form, a link operated by the machine drive for imparting vertical movement to the counter-form and a lateral runway co-operating with a spring urged roller to control the rocking movement of the counter form.

8. In an apparatus for the manufacture of turned footwear, a work receiving form, a belt of ilexible material associated therewith, a counterform co-operating with the work receiving form, a belt controlling roller system comprising two pairs of rollers, one roller of each pair being mounted rotatably on a pivot carrying a rocking arm on which the second roller of the pair of rollers is rotatably mounted, a bracket controlled by the machine drive for imparting axial movement to the belt controlling rollers in the direction of the axis of the work receiving form, a link operated by the machine drive for imparting vertical movement to the counter-form, and a lateral runway co-operating with a spring urged roller to control the rocking movement of the counter-form.

9. In an apparatus for the manufacture of turned footwear, a work receiving form, a belt of flexible material associated therewith, a counterform co-operating with the work receiving form, a belt controlling rolle:` system comprising two pairs of rollers, one roller of each pair being mounted rotatably on a pivot carrying a rocking arm on which the second roller of the pair of rollers is rotatably mounted, the two roller carrying arms being resiliently connected to each other, a bracket controlled by the machine drive for imparting axial movement to the belt controlling rollers in the direction of the axis of the Work receiving form, a link operated by the machine drive for imparting vertical movement to the counter-form, and a lateral runway co-operating with a spring urged roller to control the rocking movement of the counter-form.

JOSEF ZELINKA.

No references cited. 

